>>> "The car is 2 yrs old"
Does that mean that you're already two years into the agreement or simply that you're buying a two-year-old secondhand vehicle?
If you're two years into the agreement, you're stuck with it (unless, unusually, the lender is prepared to consider changing or cancelling the agreement).
If you've only recently signed the finance contract though, you've got a 14-day cooling off period. This link is from a particular leasing company but the statements shown apply across all leasing arrangements:
https://www.nationwidevehiclecontracts.co.uk/blog/cooling-off-periods-explained
(I wish all companies were able to provide such clear explanations as that one does).